Brake



Aug. 29', 1933. E. LA BR|E 1,924,610

BRAKE vFiled Nov. 5, 1930 J4 [-7613 INVENTOR LUD ER E. LA BFeul A TTORNEY the shi ,cra

Figure 3 is a partial section on the line 3--3 `vention has been described in detail, it is not Patented Aug. V29, 1933 BRAKE' Ludger E; La Brie, South Be11d,Ind., ass-ignor-fo' f BcndixBrake Company, `South yBend, Ind., a'

corporation of Illinois Applicaticn Novemberts, 1930. seriaxNaAfsaszs Claims. (Cl.`-18878)" 1 N ,This invention relates to brakesand is illus- Y trated as embodied in an internal expanding brake for an automobile. An object of thel invention is to provide applyingA .means for a brake, preferably applying means of a type suitable for use with shiftable-an'chorage frictionA ineansgeand wl ich can readily be operated by a Bowdentype oi control extending generally perpendicular to the plane of the backing plateat its brake end.

En one desirable arrangement, the .brake is operated by a bell crank lever fulcrumed on the brake backing plate for movement in a plane approximately perpendicular to the plane of the backing plate and which has at one end' a floating appiying lever or the like which engages the l i vertical section through the brake just inside th head of the brake drum and showing the brake shoe-sin side elevation; 1 c

Figure 2 is a par l section on the line 2 2 of Figure l and showing the mounting of the bell k lever; and

of l. and showing the mounting of the `floating brake applying lever on the bell crank lever. i

The illustrated brake includes a rotatable drum l0 at open side of which is arranged a suitl able support such as a backing plate 12l and within which is arranged the friction means lof the brake. -The friction means is preferably of e--anchorage type and may include a pair or" shoes 14 and i5 connected by means such as a floating adjustable joint 18 connected to the shoes by pivots 20. i The shoes may have steady rests or the like'22 of any desired form and are shown provided with a main return spring 24 tensicned between the shoes and an auxiliary return spring 25 tensioned between the shoe le and the backing plate. clockwise, the shoe le anchors on a iixed anchor post carried by the backing plate, while when the drum is turning counter-clockwise shoe 16 anchors on a similar anchor post also carried by the backing plate.

According to the present invention, the brake Y gaging the shoes and which'v atits `lower endfis 6()-V tendsl at a slight angle to the 'backing plate and -to which the end of the ilexible Bowden conduit 85;

Vfiled September 17,1928,I

When the drum is turning,

secured to the backing plate, and a flexible tenis Aapplied by prying its ends apart by means such i as `af novelI floating brake applying lever Vwhich may bevbuilt up' of side plates or stampings '32 between which are pivoted thrust blocks '34` .en

provided withfa socket'member 36 pivotallyseatv ed'on the rounded end of a novelbel'l crank lever 38; Bell crank'lever 38 is fulcrumed on" a vpivot v p 40 havingits axis generally parallelirig the brake'. f i

backing plate .and mounted on the bracket 42 se- (55A cured, together with a reinforcing plate 44, to

the backing plate. I consider itmost, convenient to secure the bracket Yi2`and the reinforcing plateA to the backing plate-by means of the anchors Y i 28and30. 'I 70; The end of the lever 38 upon which the Yilo'ating applying lever is pivoted extends generally in a direction perpendicular to the backing plate,

whereas the opposite end of the bell crank lever,

which may be made at least twice as long, eX-175- is connected to the end of a cable or the like 48,1 thebrake yend of which extends Vthrough a ilexible Bowden conduit in a direction substanf tially perpendicular to the plane of the backing 80,4, plate and which cable goesV through the backing plate and is connected to the longer lend of the lever 38 inside of the brake. For convenience, I mount a stamped fitting 52 on the backing plate,

50 may be connected'. Y v

While one illustrative embodiment of the inmy intention to limit the scope of that particular o embodiment'or otherwise than by the terms of 90 the appendedclaims. The present application is intended to be junior to application No. 368,600, led June 5, 1929, and application No. 306,367,`

Iclaim: v l 7,. 95.1@ 1. A brake comprising a backing plate carry-4 ing shiftable-anchorage friction means,v in combination with a bell crank lever fulcrumed on the backing Yplate and movable in a plane approximately at rightangles thereto, a oating applying lever pivoted on one arm of the bell crank lever and arranged between the ends of the fricv tion means Vand operable to pry said ends apart to apply the brake, a flexible conduit having its Y end extending in a direction approximately per- Y v pendicular vto the plane ofthe backing plate and sion element extending. through the `ecmduitand j 1 f through the backing 4plate and connected to the other arm of the bell crank lever. L10' 2. A brake comprising a backing plate carry- Y ing shiftable-anchorage friction means, in combination with a bell crank lever inside and fulcrumed on the backing plateand movable in a plane approximately at right angles thereto,

a floating applying lever pivoted on one arm of' the bell crank lever and arranged between the ends ofthe friction means and operableto pry said ends apart to apply the brake, and operating means passing through the backing plate and connected to the bell crank lever.

`3. A brake backing plate having mountedY thereon a bracket carrying a pivot With its axis approximately parallelinglrthe plane of the backing plate, a bell crank lever mounted on said,

pivot for movement in a plane approximately perpendicular to the plane of the backing plate and having one arm extending approximately per- Y p endicular tothe backing plate and havingrthe Y.

'ing platea bell crank lever mounted on said pivot 'crank lever.

for movement in a plane approximatelyperpendicular to the plane of the backing plate and having one arm extending approximately perpendicular to the backing plate and having the other arm extending along the backing platel at a slight angle thereto, a oating brake applying .lever pivotally mounted on the first arm of the bell crank lever, and a Bowden control including a conduit securedkto the backing plate and a tension element pass-ing through the-backing plate and connected to the other arm of the bell crank lever. Y Y v f *5. A lbrake backing plate havingV mounted thereon a bracket carrying a pivot with its axis approximately paralleling the plane of `the back-v ing plate, a bell crank lever mounted on said pivot for movement in a plane approximately perpendicular-tothe plane of the backing plate and having one arm extending approximately per-V pendicular to the backing plate and having the otherv arm extending along the backing plate at a slightv angle thereto, a floating brake applying lever'pivotally mounted on the first arm ofthe bell crank lever, anda Bowden control including a part secured to the backing plate and a tension element connected to the other arm of Athe bell LUDGER E, LA BRIE. 

